Boiler



L. P. McCHESN'EY.

BOILER.

APPLICATION FILED MAY 29. 1919.

. Patented Jan. 18, 1921.

VUNITED STATES PATENT OFFICE.

LOUIS PRESTOII MGCHESNEY, OF EL PASO, TEXAS.

To all whom it may concern:

Be it known that I,'LoU1s PRESTON Mc- CnEsNnY, citizen of the UnitedStates, residin at El Paso, in the county of El'P-aso and tate of Texas,.have invented certain new and useful Improvements in Boilers, of whichthe following is a specification. This invention relates to an improvedboiler particularly designed for domestic purposes and has as one of itsprincipal objects to provide a boiler whichmay be interposed in thecirculating system of a heating plant for heating the water containedwithin the boiler from the heating fluid of the plant, therebyeliminating the use of the ordinary troublesome water back or heatingcoil.

The invention has as a further object to provide a boiler which willfurnish more hot water than the ordinary boiler employing a water backor coil, other conditions being equal.

A still further object of the invention is to provide a boiler employinga jacket which, under ordinary conditions, will serve as a heatingjacket but which, in the summer time, may be drained to provide aninsulating jacket adapted to effectually minimize radiation of heat fromthe water within the boiler as well as prevent the heating of the roomin which the boiler is located.

And a further object of the invention in this connection, is to providea boiler where in the heating jacket of the boiler will, in the wintertime, serve the double urpose of heating the'water within the boiler andalso heating the room in which the boiler is located. 7 i

The figure of the drawin is a vertical sectional view illustrating aboiler embody in my invention.

eferring to the figure of the. drawing, I employ a boiler shell 44 andclosing the shell at its ends are heads 45 and 46 respectively.Surrounding the shell is a jacket 47 provided at one end with a fixedhead 48. Secured within the jacket at its opposite end is an angle plate49 and rested upon this plate is a removable head 50 for the jacket.This head may be secured to the plate by a plurality of machine bolts orother suitable fastening devices and preferably a gasket is interposedbetween the plate and head to )rovide a sealed joint. The head 45 of the,oiler shell 44 is provided with couplings BOILER.

Specification of Letters Patent. 1 Patented J an. 18, 1921. Applicationfiled May 29, 1919. Serial No. 300,505.

51 into which are threaded pipe sections 52 extending freely through thehead 50. Threaded upon these pipe sections to confront opposite sidefaces of the head 50 are nuts 53 seating against gaskets interposedbetween the nuts and the head to rovide 'sea-led joints between the headand pipe sections. The head 46 of the boiler shell is equipped with acoupling 54 into which is threaded a pipe sect-ion 55 extending freelythrough the fixed head 48 of the jacket. Threaded upon this pipe sectionto confront opposite side faces of the head 48 are nuts 56 seatingagainst suitable gaskets providing sealed joints between the pipesection and the head. As will thus be seen, the jacket 47 may, when thehead 50 thereof is re moved, be slipped over the boiler shell 44 whenthe head 50 may then be placed in position and the nuts 53 and 56applied upon the pipe sections 52 and 55 and adjusted for positioningthe jacket with respect to the shell. This construction, therefore,provides an arrangement whereby boilers already in use may be equippedwith a heating jacket. The pipe sections 52 and 55 provide, of course, ameans for admitting water to or withdrawing water from the shell.Adjacent one end the jacket is equipped with couplings 57 while similarcouplings 58 are arranged adjacent the opposite end of the jacket. Thesecouplings are adapted, as will be well understood, to receivecirculating pipes accordin to the type of heating system in connectionwith which the boiler is used and, as will be clear, the boiler may beinterposed in the circulating system of either a hot water plant orsteam plant so that the jacket will, in the first instance, beconstantly filled with hot water and, in the latter instance, constantlyfilled with steamv Thus, the heating medium will be allowed to spreadover substantially the entire area of the shell so that the watercontained within the shell will accordingly be effectually heated. Thejacket is also equipped with an air valve coupling 59 and with a draincoupling 60. As will thus be perceived, the jacket may, in the summertime, be emptied so that when an ordinary burner is employed inconnection with the boiler, the jacket will provide a heat insulatingjacket for the shell tending to retain the water within the shell hot aswell as minimize radiation of heat tro nthe boiler'into the room inwhich the boiler is located. The highly desirable advantages of thisfeature will at once be appreciated. Furthen it will be seen that,

inv the winter time, the boiler will, since the heating medium willconstantly flow" through the jacket of the boiler, act to ma-" teriallyheat the room in which-the boiler is located.

Vmay be withdrawn from around the shell,

ustable spacing means between the jacket and shell, and'ine ans forintro ducing a heatln'g medium Into the jacket '2; A boiler lncludlng ashell, a acket'surrounding the shell, coupling means between the jacketand shell whereby the jacket may 7 be adjustably positioned with respectto the shell, and means for introducing a heating medium into thejacket. V

3, A boiler including a shell, a' jacketsurrounding the shell, means foradjusting the j acket with respect to the shell, and means forintroducing a heating medium into the jacket. i V

In testimony whereof I afiix my signature.

Lou s'rnrs'roanccnnsuizr; "[1. 1" 7

